PDBe 3cun

X-ray diffraction
3Å resolution

Aminoacyl-tRNA synthetase ribozyme


Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct RNA molecule
Macromolecules (2 distinct):
U1 small nuclear ribonucleoprotein A Chains: A, B
Molecule details ›
Chains: A, B
Length: 98 amino acids
Theoretical weight: 11.57 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P09012 (Residues: 1-98; Coverage: 35%)
Gene name: SNRPA
Sequence domains: RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain)
Structure domains: Alpha-Beta Plaits
RNA (92-MER) Chains: C, D
Molecule details ›
Chains: C, D
Length: 92 nucleotides
Theoretical weight: 29.82 KDa
Source organism: Homo sapiens
Expression system: CELL-FREE SYNTHESIS

Ligands and Environments

3 bound ligands:

2 modified residues:

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: C2
Unit cell:
a: 191.368Å b: 48.076Å c: 90.645Å
α: 90° β: 93.5° γ: 90°
R R work R free
0.252 0.252 0.303
Expression systems:
  • Escherichia coli